Like Girls, American Boys Have Earlier Puberty

choi

Pam Belluck, Boys Now Enter Puberty Younger, Study Suggests, but It’s Unclear Why; A respected study echoes findings made earlier about girls. New York Times, Oct 20, 2012.
http://www.nytimes.com/2012/10/2 ... study-suggests.html
(A large study released by the American Academy of Pediatrics, to be release today and published online in the journal Pediatrics, estimates that boys are showing signs of puberty six months to two years earlier than was reported in previous research, which historically taught that 11 ½ was the general age puberty began in boys; The new study also found that African-American boys began puberty earlier (a little older than 9) than whites and Hispanics (a little older than 10), a result that other studies have shown also applies to African-American girls)